The art in this one is really good and I would say it's quite underrated. It's too short to have a "really good plot" but it's worth a read while you wait for a better suggestion: https://www.mangago.zone/read-manga/liquor_cigarette/
Oh! I really like this one too: https://www.mangago.zone/read-manga/playtime_with_hakdo/
(๑•ㅂ•)و✧
Paljae :)
At the end of death
https://www.mangago.zone/read-manga/stigmata_1/
https://www.mangago.zone/read-manga/sangyang_the_wanderer/ (PEAKKK)
https://www.mangago.zone/read-manga/radio_storm/
https://www.mangago.zone/read-manga/count_tachibana/
https://www.mangago.zone/read-manga/fire_train/
https://www.mangago.zone/read-manga/beauty_and_the_west_chamber/
Underrated bls with really good plots